The coming age of Calm technology Published in

The coming age of Calm technology • Published in 1996 • Notions of – Mainframe – many people share a computer – Personal computer – one computer person …. . internet, distributed computing…. – Ubiquitous computing – many computers share us CSCI {4, 6}900: Ubiquitous Computing

The periphery • A calm technology will move easily from the periphery of our attention to the center and back • Examples – Inner Office Window – Internet Multicast – Dangling String CSCI {4, 6}900: Ubiquitous Computing

Inner Office Window • Notion of connectedness • Boundary well defined CSCI {4, 6}900: Ubiquitous Computing

Internet Multicast UGA Charter @Home Allows Groups To share packets GATECH CSCI {4, 6}900: Ubiquitous Computing

Internet Multicast When UGA joins packets are not duplicated UGA Charter @Home Allows Groups To share packets GATECH CSCI {4, 6}900: Ubiquitous Computing

Dangling String • Small motor connected to ethernet • Whenever a packet goes by, it twitches • With a busy network it whirls along CSCI {4, 6}900: Ubiquitous Computing

“Future” • 10 million pixels (80 dpi over several feet) – Still too expensive • Embedded processors – 1 billion operations / sec low power – Reality: Hitachi SH 4 – 200 MHz low power • Matchbox size removable hard drives at 60 MB – Reality: 1 GB microdrive CSCI {4, 6}900: Ubiquitous Computing

“Future” • 1000 x 800 high contrast display CSCI {4, 6}900: Ubiquitous Computing

“Future” • Remove fixed configuration of devices – Universal plug and play, Jini etc. . • High speed wireless networks everywhere – 3 G wireless networks upto 384 kb (deployment slow) • Close range wireless networks – Bluetooth, Home. RF • Wireless LAN – 802. 11 b (11 Mbit – right here in the class) CSCI {4, 6}900: Ubiquitous Computing

Missed technologies • World Wide Web • Is WWW ubiquitous? CSCI {4, 6}900: Ubiquitous Computing